java3D的VRML模型的交互例子

/* import java.applet.Applet; import java.awt.BorderLayout; import com.sun.j3d.utils.applet.MainFrame; import com.sun.j3d.utils.universe.*; import javax.media.j3d.*; import javax.vecmath.*; import com.sun.j3d.loaders.vrml97.VrmlLoader; import com.sun.j3d.loaders.Scene; public class Vrml1 extends Applet { private String filename = null; public BranchGroup createSceneGraph(String args[]) { BranchGroup objRoot = new BranchGroup(); TransformGroup objScale = new TransformGroup(); Transform3D t3d = new Transform3D(); t3d.setScale(0.3); objScale.setTransform(t3d); objRoot.addChild(objScale); Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f); Vector3f light1Direction = new Vector3f(4.0f, -7.0f, -12.0f); BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0); DirectionalLight light1 = new DirectionalLight(light1Color, light1Direction); light1.setInfluencingBounds(bounds); objRoot.addChild(light1); TransformGroup objTrans = new TransformGroup(); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objScale.addChild(objTrans); VrmlLoader loader = new VrmlLoader(); Scene s = null; try { s = loader.load(filename); } catch (Exception e) { System.err.println(e); System.exit(1); } objTrans.addChild(s.getSceneGroup()); Transform3D yAxis = new Transform3D(); Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 4000, 0, 0, 0, 0, 0); RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objTrans, yAxis, 0.0f, (float) Math.PI*2.0f); rotator.setSchedulingBounds(bounds); objTrans.addChild(rotator); objRoot.compile(); return objRoot; } public Vrml1(String args[]) { filename = args[0]; setLayout(new BorderLayout()); Canvas3D c = new Canvas3D(SimpleUniverse.getPreferredConfiguration()); add("Center", c); BranchGroup scene = createSceneGraph(args); SimpleUniverse u = new SimpleUniverse(c); u.getViewingPlatform().setNominalViewingTransform(); u.addBranchGraph(scene); } public static void main(String[] args) { new MainFrame(new Vrml1(args), 400,400); } } */ import java.applet.Applet; import java.awt.BorderLayout; import com.sun.j3d.utils.applet.MainFrame; import com.sun.j3d.utils.universe.*; import javax.media.j3d.*; import javax.vecmath.*; //import org.jdesktop.j3d.loaders.vrml97.VrmlLoader; import com.sun.j3d.loaders.vrml97.VrmlLoader; import com.sun.j3d.loaders.Scene; import java.awt.GraphicsConfiguration; import java.io.*; public class Vrml1 extends Applet { public void init() { //filename = args[0]; setLayout(new BorderLayout()); Canvas3D c = new Canvas3D(SimpleUniverse.getPreferredConfiguration()); add("Center", c); BranchGroup scene = createSceneGraph(); SimpleUniverse u = new SimpleUniverse(c); u.getViewingPlatform().setNominalViewingTransform(); u.addBranchGraph(scene); } /** * */ private static final long serialVersionUID = -6019133668952244907L; //private String filename = "SKXC.wrl"; public BranchGroup createSceneGraph() { BranchGroup objRoot = new BranchGroup(); TransformGroup objScale = new TransformGroup(); Transform3D t3d = new Transform3D(); t3d.setScale(0.3); objScale.setTransform(t3d); objRoot.addChild(objScale); Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f); Vector3f light1Direction = new Vector3f(4.0f, -7.0f, -12.0f); BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0); DirectionalLight light1 = new DirectionalLight(light1Color, light1Direction); light1.setInfluencingBounds(bounds); objRoot.addChild(light1); TransformGroup objTrans = new TransformGroup(); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objScale.addChild(objTrans); VrmlLoader loader = new VrmlLoader(); Scene s = null; try { s = loader.load("zhuozi.wrl"); } catch (Exception e) { System.err.println(e); System.exit(1); } objTrans.addChild(s.getSceneGroup()); Transform3D yAxis = new Transform3D(); Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 4000, 0, 0, 0, 0, 0); RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objTrans, yAxis, 0.0f, (float) Math.PI*2.0f); rotator.setSchedulingBounds(bounds); objTrans.addChild(rotator); objRoot.compile(); return objRoot; } public Vrml1() { //filename = args[0]; setLayout(new BorderLayout()); Canvas3D c = new Canvas3D(SimpleUniverse.getPreferredConfiguration()); add("Center", c); BranchGroup scene = createSceneGraph(); SimpleUniverse u = new SimpleUniverse(c); u.getViewingPlatform().setNominalViewingTransform(); u.addBranchGraph(scene); } }